CVE-2022-49229
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-49229
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49229.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2022-49229
- Downstream
- Published
- 2025-02-26T01:55:57Z
- Modified
- 2025-10-21T10:17:15.034304Z
- Summary
- ptp: unregister virtual clocks when unregistering physical clock.
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
ptp: unregister virtual clocks when unregistering physical clock.
When unregistering a physical clock which has some virtual clocks, unregister the virtual clocks with it.
This fixes the following oops, which can be triggered by unloading a driver providing a PTP clock when it has enabled virtual clocks:
BUG: unable to handle page fault for address: ffffffffc04fc4d8 Oops: 0000 [#1] PREEMPT SMP NOPTI RIP: 0010:ptpvclockread+0x31/0xb0 Call Trace: timecounterread+0xf/0x50 ptpvclockrefresh+0x2c/0x50 ? ptpclockrelease+0x40/0x40 ptpauxkworker+0x17/0x30 kthreadworkerfn+0x9b/0x240 ? kthreadshouldpark+0x30/0x30 kthread+0xe2/0x110 ? kthreadcompleteandexit+0x20/0x20 retfromfork+0x22/0x30
- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/9c796a57cbb5daf124a665689f0b2bc9262e0ced
- https://git.kernel.org/stable/c/b2dea2a696d09163da4cd33cb598ce1f73e86597
- https://git.kernel.org/stable/c/bfcbb76b0f595ea9ede9f7a218086fef85242f10
- https://git.kernel.org/stable/c/c49eafe6249f844c26f9866886cc6719d81762df
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced73f37068d540eba5f93ba3a0019bf479d35ebd76Fixedb2dea2a696d09163da4cd33cb598ce1f73e86597
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced73f37068d540eba5f93ba3a0019bf479d35ebd76Fixed9c796a57cbb5daf124a665689f0b2bc9262e0ced
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced73f37068d540eba5f93ba3a0019bf479d35ebd76Fixedc49eafe6249f844c26f9866886cc6719d81762df
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced73f37068d540eba5f93ba3a0019bf479d35ebd76Fixedbfcbb76b0f595ea9ede9f7a218086fef85242f10